Our country achieves a zero breakthrough in optical clock calibration of international standard time

Today, reporters learned that the Strontium Atomic Optical Lattice Clock NIM-Sr1 developed by the China Institute of Metrology has been officially approved for calibration of international standard time, marking China’s first participation in the calibration of international standard time with an optical clock. This is a milestone in China’s optical clock research, which will lead to more of our optical clocks participating in the calibration of international standard time and comprehensively enhance China’s influence in the field of international time and frequency research. (CCTV News)